Grade 2 C2 Science Review 10/30

The teacher plays a song on the ukulele.

How can a ukulele make a sound?

• Electricity is used to vibrate the strings.

• Tiny speakers are used to increase the

  sound.

• Sound is captured from the air and turned

  into music.

• Plucking the strings causes them to vibrate.

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Look at the picture.

Two friends are playing on the swing. One friend

sits on the swing and the other pushes the swing.

What needs to happen to make the swing move

more quickly?

• Push harder.

• Push softer.

• Stop pushing.

• Push in another direction.

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Choose the BEST word to complete the sentence.

Sound makes our eardrums and other objects

(a)   .

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If you drop a clay ball and it lands on the floor, the

clay ball and the floor (a)   . The clay ball will

change shape but the floor will not.

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Observe the picture.

In which location will the sound from the helicopter

be the lowest? Select the correct letter.

• A

• B

• C

• D

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Observe the picture.

Which statement about kicking a soccer ball is

true?

• If you kick a soccer ball, it always flies in the air.

• If you kick a soccer ball with a strong force, it will roll fast.

• If you kick a soccer ball with a soft force, it will roll fast.

• If you kick a soccer ball with a strong force, it will stop rolling.

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Which diagram correctly explains what is

happening in the picture?

• 
• 
• 
• 

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Which of the following statements about a push is

NOT true?

• Kicking a ball is an example of a push.

• Pushing a box will move the box away from you.

• A toy car will roll as a result of a push.

• Opening a drawer is an example of a push.

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Select the word that BEST completes the

sentence.

(a)   is how loud or quiet a sound is.

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Part A

When might you want to use a loud sound?

A. When people are sleeping during the day

B. When you need to warn people across the

street

C. When you are in a library looking at books

D. When you are talking to someone close to

you

Part B

Which BEST supports the answer to Part A?

A. We use loud sounds when we do not want

to bother others.

B. We use quiet sounds when we do not want

to bother others.

C. We use loud sounds because they travel

far.

D. We use quiet sounds because they travel

far.

• B, C

• A, A

• D, C

• B, A